<!--
 * @Author: 许浩锋
 * @Date: 2021-06-26 16:23:58
 * @LastEditors: 许浩锋
 * @LastEditTime: 2021-07-01 16:56:35
 * @Description:
-->
<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item :to="{ path: '/goods' }"
        >>商品列表</el-breadcrumb-item
      >
      <el-breadcrumb-item>添加商品</el-breadcrumb-item>
    </el-breadcrumb>
    <el-card body-style="{height: 100%}">
      <el-alert show-icon center title="添加商品信息" type="info"> </el-alert>
      <el-steps align-center :active="active - 0" finish-status="success">
        <el-step title="基本信息"></el-step>
        <el-step title="商品参数"></el-step>
        <el-step title="商品属性"></el-step>
        <el-step title="商品图片"></el-step>
        <el-step title="商品内容"></el-step>
        <el-step title="完成"></el-step>
      </el-steps>
      <el-form
        label-position="left"
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
      >
        <el-tabs
          v-model="active"
          :tab-position="'left'"
          :before-leave="beforeTabLeave"
          @tab-click="tabClicked"
        >
          <el-tab-pane label="基本信息" name="0">
            <el-form-item label="商品名称" prop="goods_name">
              <el-input v-model="addForm.goods_name"></el-input>
            </el-form-item>

            <el-form-item label="商品价格" prop="goods_price">
              <el-input v-model="addForm.goods_price" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品数量" prop="goods_number">
              <el-input v-model="addForm.goods_number" type="number"></el-input>
            </el-form-item>
            <el-form-item label="分类" prop="goods_cat">
              <el-cascader
                v-model="addForm.goods_cat"
                :options="catelist"
                :props="option"
                @change="handleChange"
              >
              </el-cascader>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品参数" name="1">
            <el-form-item
              :label="item.attr_name"
              v-for="item in manyTableData"
              :key="item.attr_id"
            >
              <el-checkbox-group v-model="item.attr_vals">
                <el-checkbox
                  border
                  :label="cb"
                  v-for="(cb, i) in item.attr_vals"
                  :key="i"
                ></el-checkbox>
              </el-checkbox-group>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品属性" name="2">
            <el-form-item
              :label="item.attr_name"
              v-for="item in onlyTableData"
              :key="item.attr_id"
            >
              <el-input v-model="item.attr_vals"></el-input>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品图片" name="3">
            <!-- action表示图片要上传到后台API的地址 -->
            <el-upload
              :headers="headerObj"
              :on-success="handleSuccess"
              action="http://127.0.0.1:8888/api/private/v1/upload"
              :on-preview="handlePreview"
              :on-remove="handleRemove"
              list-type="picture"
            >
              <el-button size="small" type="primary">点击上传</el-button>
            </el-upload></el-tab-pane
          >
          <el-tab-pane label="商品内容" name="4">
            <!-- 富文本编辑器 -->
            <quill-editor v-model="addForm.goods_introduce"></quill-editor>
            <el-button type="primary" class="btnAdd" @click="add"
              >添加商品</el-button
            >
          </el-tab-pane>
        </el-tabs>
      </el-form>
    </el-card>
    <el-dialog title="图片预览" :visible.sync="previewwVisible" width="50%">
      <img :src="previewPath" class="previewImg" />
    </el-dialog>
  </div>
</template>
<script>
import _ from 'lodash'
export default {
  data() {
    return {
      active: '0',
      addForm: {
        goods_name: '123',

        goods_price: 0,
        goods_weight: 0,
        goods_number: 0,
        goods_cat: [],
        pics: [],
        goods_introduce: '',
        attrs: [],
      },
      addFormRules: {
        goods_name: [
          { required: true, message: '请输入商品名称', trigger: 'blur' },
        ],
        goods_cat: [
          { required: true, message: '以为,分割的分类列表', trigger: 'blur' },
        ],
        goods_price: [
          { required: true, message: '请输入价格', trigger: 'blur' },
        ],
        goods_number: [
          { required: true, message: '请输入数量', trigger: 'blur' },
        ],
        goods_weight: [
          { required: true, message: '请输入重量', trigger: 'blur' },
        ],
      },
      catelist: [],
      option: {
        value: 'cat_id',
        label: 'cat_name',
        children: 'children',
      },
      manyTableData: [],
      onlyTableData: [],
      fileList: [],
      previewPath: '',
      headerObj: { Authorization: window.sessionStorage.getItem('token') },
      previewwVisible: false,
    }
  },
  created() {
    this.getCateList()
  },
  methods: {
    async addGoods() {
      const { data: res } = await this.$http.post(`goods`, {
        params: this.addForm,
      })
    },
    async getCateList() {
      const { data: res } = await this.$http.get('categories')
      if (res.meta.status !== 200) {
        return this.$message.error('获取商品类表失败')
      }
      this.catelist = res.data
      console.log(this.catelist)
    },
    handleChange(value) {
      console.log(this.addForm.goods_cat)
      if (this.addForm.goods_cat.length !== 3) {
        this.addForm.goods_cat = []
      }
    },
    beforeTabLeave(acticeName, oldActiveName) {
      if (oldActiveName === '0' && this.addForm.goods_cat.length !== 3) {
        this.$message.error('请先选择商品分类！')
        return false
      }
    },
    async tabClicked() {
      if (this.active === '1') {
        const { data: res } = await this.$http.get(
          `categories/${this.cateId}/attributes`,
          {
            params: { sel: 'many' },
          }
        )
        if (res.meta.status !== 200) {
          return this.$message.error('获取参数失败')
        }
        console.log(res.data)
        res.data.forEach((item) => {
          item.attr_vals =
            item.attr_vals.length === 0 ? [] : item.attr_vals.split(' ')
        })
        this.manyTableData = res.data
      } else if (this.active === '2') {
        const { data: res } = await this.$http.get(
          `categories/${this.cateId}/attributes`,
          {
            params: { sel: 'only' },
          }
        )
        if (res.meta.status !== 200) {
          return this.$message.error('获取参数失败')
        }
        this.onlyTableData = res.data
      }
    },
    handleRemove(file, fileList) {
      const filePath = file.response.data.tmp_path
      const i = this.addForm.pics.findIndex((x) => x.pic === filePath)
      this.addForm.pics.splics(i, 1)
    },
    handlePreview(file) {
      console.log(file)
      this.previewPath = file.response.data.url
      this.previewwVisible = true
    },
    handleSuccess(response) {
      const pircInfo = { pic: response.data.tmp_path }
      this.addForm.pics.push(pircInfo)
    },
    add() {
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) {
          return this.$message.error('请填写必要的表单项')
        }
        const form = _.cloneDeep(this.addForm)
        form.goods_cat = form.goods_cat.join(',')
        // this.addForm.goods_cat = this.addForm.goods_cat.join(',').trim()
        this.manyTableData.forEach((item) => {
          const newInfo = {
            attr_id: item.attr_id,
            attr_value: item.attr_vals.join(' '),
          }
          this.addForm.attrs.push(newInfo)
        })
        this.onlyTableData.forEach((item) => {
          const newInfo = {
            attr_id: item.attr_id,
            attr_value: item.attr_vals,
          }
          this.addForm.attrs.push(newInfo)
        })
        form.attrs = this.addForm.attrs

        const { data: res } = await this.$http.post(`goods`, form)
        console.log(this.addForm)
        console.log(res)
        if (res.meta.status != 201) {
          return this.$message.error('创建失败')
        }

        this.$message.success('创建成功')
        this.$router.push('/goods')
      })
    },
  },
  computed: {
    cateId() {
      if (this.addForm.goods_cat.length === 3) {
        return this.addForm.goods_cat[2]
      }
      return null
    },
  },
}
</script>
<style lang="less" scoped>
.el-tabs {
  margin-top: 30px;
}
.el-cascader {
  display: block;
}
.el-checkbox {
  margin: 0 5px 0 0;
  display: float;
}
.el-upload {
  .el-button {
    transform: translate(-550%, 0);
  }
}
.previewImg {
  width: 100%;
}
.btnAdd {
  position: relative;
  margin-top: 20px;
  transform: translate(-450%, 0);
}
</style>
